Display Scan-Line Selection Layout for Narrow Bezel Charging
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Solution Overview
Problem
Display devices with a large number of scan lines face issues such as increased bezel width, the need for specialized chips, and insufficient pixel charging rates, leading to high power consumption.
Innovation Solution
The design includes an array substrate with a selection line that can simultaneously control at least four active elements, allowing for sufficient pixel charging and reduced power consumption, and is compatible with both narrow bezel and existing specification chip products by intersecting selection lines with scan lines to transmit scan signals efficiently.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If a large number of scan lines are placed to meet application requirements, then the display device can support more pixels, but the bezel width increases and power consumption increases
Solution Approach 1:
The patent merges the function of multiple scan lines into a single selection line that can simultaneously control at least four active elements. The selection line is electrically connected to multiple scan lines (first scan line, second scan line, third scan line, fourth scan line) through active elements, allowing one scan signal to activate multiple scan lines concurrently, thereby reducing the total number of scan lines needed and lowering power consumption
Solution Approach 2:
The selection line serves multiple functions by being able to control at least four different active elements simultaneously. This multi-functional design allows a single scan signal to perform what would traditionally require multiple separate scan lines, reducing the overall scan line count and associated power consumption while maintaining full display functionality
2Quantity of substance
If a large number of scan lines are placed to meet application requirements, then the display device can support more pixels, but the bezel width increases
Solution Approach 1:
The patent merges multiple scan line functions into a single selection line structure that intersects with and controls multiple scan lines. This consolidation reduces the number of separate scan lines required, allowing for narrower bezel width while still supporting the necessary number of pixels through the multi-controlled active elements
3Quantity of substance
If scan lines are increased to support more pixels, then display resolution improves, but pixel charging time decreases resulting in insufficient charging rate
Solution Approach 1:
By merging multiple scan line controls into a single selection line that can simultaneously activate multiple scan lines, the patent ensures that sufficient scan signals are provided to all pixel regions concurrently. This maintains adequate charging time for pixels even as the display supports more pixels, preventing insufficient charging rates that would occur with traditional increased scan line configurations
Data Source
AI summary
A display device includes an array substrate and a driving circuit. The array substrate includes active elements, a first scan line, a second scan line, a third scan line disposed between the first scan line and the second scan line, and a first selection line electrically connected to the first scan line and the second scan line. The active elements include a first active element and a second active element electrically connected to the first scan line, and a third active element and a fourth active element electrically connected to the second scan line. The driving circuit provides a first scan signal transmitted to the first scan line and the second scan line through the first selection line to control the first active element, the second active element, the third active element and the fourth active element.